Comment Re:This one will be quick. (Score 1) 311
How does the Tor Project get safe harbor? They're not an ISP.
In that case, it gets thrown out one step sooner, since they're even less involved than an ISP would be.
How does the Tor Project get safe harbor? They're not an ISP.
In that case, it gets thrown out one step sooner, since they're even less involved than an ISP would be.
I wonder how much of that is because of the way you're using them. They give a lifespan estimate, but that's making some very broad assumptions about how you use them. Those estimates about how many years they'll last are based on you using it for so many hours per day but only turning it on a few times per day. If you turn the light on and off many times per day, as you might in a bathroom or if you're using an occupancy sensor, the filaments will wear out a lot sooner than the projected lifespan. If you're really turning the lights on and off a lot, LEDs are probably a better choice.
Their energy savings is not that much better than CFLs...
That depends on what you consider "much better". The newer LED bulbs at big box retailers like Home Depot are now using around 1/3 less power than equivalent CFLs. That's not the same kind of savings you get from switching from incandescent to CFL, but it's still substantial. If power costs more than about $0.10/kW, they're probably worth the increased up-front cost.
Ah, thanks.
[cryptic response]
Hooray! Congrats!
I've never had a CFL fail. I've been replacing incandescents with CFLs whenever a bulb burns out. My oldest CFL is 7 years old and my newest is a little under 1 year old.
Sometimes, the cheapest and most efficient LED bulbs are in the blue end of the spectrum, especially when the color temperature doesn't matter too much - like a flashlight.
In that case, it's not so much the color temperature as it is the spectrum. The color temperature tells you what temperature of blackbody radiation your light source most closely resembles, but it doesn't tell you how closely it resembles it. Our eyes work best with light that has a distribution similar to blackbody radiation, i.e. with a wide, smooth distribution of wavelengths. If the distribution has sharp spikes, it can cause things to look the wrong color compared to what they're expected to look like. This is most obvious if you get one of the LED lights that uses a mix of pure red, green, and blue to simulate other colors; you can get something that looks like white if you look directly at the lights, but nothing they shine on looks right. That color shift is what CRI (color rendering index) is supposed to measure.
Lights have to have a CRI of at least 80 to qualify for Energy Star, which means that most household lights are now fairly decent. Cheaper lights and ones not intended for general illumination may go for higher efficiency at the cost of lower CRI, which is what you're probably noticing in the light from flashlights. High CRI (90+) lights are available, but they're usually a bit more expensive and less efficient.
Many of us are still living! Just a bit dispersed here and there.
Generally speaking, anything with lots of parts has more points of failures.
Maybe that's true in general, but in the specific case of lighting, incandescent lights obviously have a much shorter life span than CFLs or LEDs. There's plenty of reason to think that incandescent lights do badly with power spikes. My experience is that they're a lot more likely to fail when you turn the light on than any other time, which suggests susceptibility to power surges. It's just that replacing dead incandescent lights is a regular activity, so the occasional failure due to power spikes is much less noticeable than for a light you expect to replace once or twice a decade.
It's a happening place. There are upwards of 3, maybe 4 posts a day!
You should join us, if you like.
http://www.reddit.com/r/CircularRefuge
(message mods to join; can't let the riffraff on reddit in! Just our very own special riffraff.)
I wouldn't be so sure that energy efficient lights a lot more sensitive to dirty power than incandescent lights. It's just that incandescent lights have such a high background failure rate. If a CFL or LED light dies, you assume there must be a problem with it because their rate of natural death is so low. With incandescent lights, you would have a hard time telling whether one died because of bad power or because it's just given up the ghost.
IMHO all this tech is basically good, but I should point out that I also consider a large wooden horses to be basically good things, too. (They can be neat works of art, or convenient sources of fire wood.) That doesn't mean I'm saying you should wheel all the ones you find, through your city gates! There are other issues besides the utility value of wooden horses. It's the tech that should be celebrated, not necessarily all the products that use it. Tech and products are two very different things, even if related.
There's a pretty easy way to judge the ads for this stuff: what protocols does the product speak? Do you already have software in your repo that speaks that protocol?
And of course, you don't necessarily have to use someone else's service to get the device to work, right? (I'm not even saying you necessarily shouldn't use their service, but if you have to then the product is almost certainly garbage.)
Congratulations, that's one of the stupidest things I've ever read on
"They are the only people who would have actually earned it."
Everyone here is dumber for having read that.
"And remember: Evil will always prevail, because Good is dumb." -- Spaceballs